// ==UserScript==
// @name         随机写入100个不同字符到剪切板
// @namespace    https://viayoo.com/6a4j69
// @version      0.5
// @description  纯粹自用脚本，MIUI剪切板写入字符超过2w+后，底栏的无法显示剪切板内容，只有不断写入，超过限定剪切板数量，才能显示新的剪切板。
// @author       Via
// @match        *://*/*
// @grant        GM_setClipboard
// @grant        GM_registerMenuCommand
// @grant        GM_getValue
// @grant        GM_setValue
// @run-at       document-idle
// ==/UserScript==

(() => {
    'use strict';
    const POOL = "ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnpqrstuvwxyz23456789~!@#$%^&*_-+=<>?";
    const TIMES = GM_getValue('copyTimes', 100);
    const sec = (TIMES * 60 / 1000).toFixed(1);
    let i = 0, bar = null;

    const rand100 = () => {
        const rnd = Math.random();
        let arr = POOL.split('');
        for (let x = arr.length - 1; x > 0; x--) {
            const j = Math.floor(Math.random() * (x + 1));
            [arr[x], arr[j]] = [arr[j], arr[x]];
        }

        if (rnd < 0.7) {
            const len = 10 + Math.floor(Math.random() * 141);
            return arr.slice(0, len).join('');
        } else if (rnd < 0.9) {
            const p1 = arr.slice(0, 3 + Math.random() * 10 | 0).join('');
            const p2 = arr.slice(15, 18 + Math.random() * 12 | 0).join('');
            const p3 = arr.slice(30, 32 + Math.random() * 8 | 0).join('');
            return p1 + p2 + p3;
        } else {
            let result = '';
            const segs = 3 + Math.floor(Math.random() * 5);
            let start = 0;
            for (let s = 0; s < segs; s++) {
                const len = 1 + Math.floor(Math.random() * 20);
                result += arr.slice(start, start + len).join('');
                start += len + 5;
                if (start >= arr.length) start = 0;
            }
            const chaos = Math.random() < 0.4 ? ' \n ' : Math.random() < 0.3 ? '\t' : '  ';
            return result.split('').join(Math.random() < 0.3 ? chaos : '');
        }
    };

    const copy = t => {
        if (typeof GM_setClipboard === 'function') GM_setClipboard(t);
        else if (navigator.clipboard?.writeText) navigator.clipboard.writeText(t);
        else {
            const e = document.createElement('textarea');
            e.value = t; e.style.cssText = 'position:fixed;opacity:0';
            document.body.appendChild(e); e.select(); document.execCommand('copy'); e.remove();
        }
    };

    const createBar = () => {
        bar = document.createElement('div');
        bar.innerHTML = `<div style="font:600 32px/1 -apple-system,system-ui,BlinkMacSystemFont,'Segoe UI',sans-serif;color:#1c2526;margin-bottom:12px;letter-spacing:-0.6px">0 / ${TIMES}</div><div style="height:10px;background:rgba(0,0,0,.12);border-radius:7px;overflow:hidden;position:relative"><div id="p" style="width:0%;height:100%;background:linear-gradient(90deg,#007AFF,#00C2FF);border-radius:7px;transition:width .6s cubic-bezier(.16,1,.3,1);box-shadow:0 0 16px rgba(0,122,255,.6)"></div></div>`;
        bar.style.cssText = 'position:fixed;top:50%;left:50%;transform:translate(-50%,-50%) scale(.92);min-width:300px;max-width:88vw;padding:24px 32px;background:rgba(255,255,255,.72);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border-radius:26px;border:1px solid rgba(255,255,255,.4);box-shadow:0 12px 32px rgba(0,0,0,.18),0 4px 12px rgba(0,0,0,.12);z-index:2147483647;pointer-events:none;text-align:center;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;opacity:0;transition:all .65s cubic-bezier(.22,1,.36,1)';
        document.body.appendChild(bar);
        requestAnimationFrame(() => {
            bar.style.opacity = '1';
            bar.style.transform = 'translate(-50%,-50%) scale(1)';
        });
    };

    const progress = () => {
        if (!bar) createBar();
        bar.firstElementChild.textContent = i + ' / ' + TIMES;
        bar.querySelector('#p').style.width = (i / TIMES * 100) + '%';
        if (i >= TIMES) {
            const p = bar.querySelector('#p');
            p.style.background = 'linear-gradient(90deg,#34C759,#32D74B)';
            p.style.boxShadow = '0 0 24px rgba(52,199,89,.8)';
            setTimeout(() => {
                bar.style.opacity = '0';
                bar.style.transform = 'translate(-50%,-50%) scale(.92)';
                setTimeout(() => bar?.remove(), 700);
            }, 900);
        }
    };

    const run = () => { copy(rand100()); i++; progress(); };

    const start = mode => {
        if (i > 0) return alert('请刷新页面后再操作');
        i = 0;
        if (bar) bar.remove();
        bar = null;
        progress();
        if (mode === 'lightning') {
            while (i < TIMES) run();
        } else {
            const id = setInterval(() => {
                if (i >= TIMES) clearInterval(id);
                else run();
            }, 60);
        }
    };

    GM_registerMenuCommand('光速复制 ' + TIMES + ' 次（瞬间完成）', () => start('lightning'));
    GM_registerMenuCommand('快速复制 ' + TIMES + ' 次（约' + sec + '秒）', () => start());
    GM_registerMenuCommand('设置复制次数（当前 ' + TIMES + ' 次）', () => {
        const n = prompt('请输入要连续复制的次数（1~50000）', TIMES);
        if (n && /^\d+$/.test(n) && +n >= 1 && +n <= 50000) {
            GM_setValue('copyTimes', +n);
            location.reload();
        }
    });
})();